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On the Superstability of the Pexider Type Trigonometric Functional Equation
Journal of Inequalities and Applications volume 2010, Article number: 897123 (2010)
We will investigate the superstability of the (hyperbolic) trigonometric functional equation from the following functional equations: and, which can be considered the mixed functional equations of the sine function and cosine function, the hyperbolic sine function and hyperbolic cosine function, and the exponential functions, respectively.
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Kim, G. On the Superstability of the Pexider Type Trigonometric Functional Equation. J Inequal Appl 2010, 897123 (2010). https://doi.org/10.1155/2010/897123
- Functional Equation
- Exponential Function
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- Sine Function
- Cosine Function